KR900006390Y1 - Apparatus for using of pumping plants - Google Patents

Abstract

No content.

Description

Automatic water supply system using volute pump

1 is a circuit diagram showing the overall configuration of the present invention.

2 is a timing chart for explaining the operation of the present invention.

The present invention relates to an automatic water supply system using a volute pump installed in a water supply source such as groundwater to obtain living water or industrial water, and in particular, to double the pressure of the automatic pump and prevent frequent operation of the motor. It was made.

In the past, an automatic water supply system using a pressure tank was used, but water supply above the set pressure of the pressure switch is impossible, and when the faucet is opened a little or a shower is used, the pressure switch is frequently interrupted and the pump motor is interrupted every time. There was a case that the motor was heated and burned out due to the inrush current at the time of enormous starting, and the pressure switch also had the problem of shortening its life due to frequent operation, and the failure rate was very high. The water supply equipment was economically burdened by installing and manufacturing a sufficient capacity water storage tank.

The present invention is to solve the problems that the conventional automatic water supply device as described above described in detail according to the accompanying drawings as follows.

Relay (RL ₁ ) and its contact (RL ₁ -C) (RL ₁ -D) to the output of transistor (TR ₂ ) operated by sensing rod (E ' ₁ ) (E' ₂ ) (E ' ₃ ). In the well-known liquid level controller in which the motor M of the volute pump P connected to (C) is operated, discharge of the pump P ₁ to the sensing rod connecting terminals E ₁ and E ₃ . The pressure switch 1 installed between the pipe check valve 2 and the faucet 3 is connected, and the pulsation voltage of the rectifier circuit 5 is converted into a direct current from the smoothing circuit 6 to the base of the transistor TR ₁ . The resistor R ₁ and the delay time resistor R ₁ (VR) through the capacitor C ₁ of the smoothing circuit 6 and the contact SR ₁ (SR ₂ ) of the selection switch SR, Connect the Zener diode (ZD) in parallel and connect the transistor (TR ₁ ) base to the parallel connected resistor (R ₁ ) and resistor (R ₂ ), connect the bias resistor (R ₃ ) to the collector side, and then the relay base of the PNP transistor (TR ₂₎ for driving the (RL ₁₎ It is connected.

And for the separate liquid level controller, connect the sensing rod (E _{1 '} ) (E _2' ) (E _{3 '} ) to the sensing rod connecting terminal (E ₁ ) (E ₂ ) (E ₃ ) instead of the pressure switch (1). and the relay (RL ₁₎ contact point (C) (RL ₁ -C) to (RL ₁ -D) class, a series connection junction _{(SL 3) (SL 4)} (C) of the drain select switch (SL) to the Opening and closing the power supply of the motor (M), when the large power relay (RL ₂ ) is attached as indicated by the dotted line, the contact (E ' ₃ ) of the power relay (RL ₂ ) and the supply and drain selection switch (SL') (E _'4) and relay (RL ₁₎ contact point (RL ₁ -C _{a') (RL 1 -D ')} (C') in series to the wiring, and then relay (RL ₁₎ and the parallel connection with respect to power a transistor (TR ₂₎ to the hayeoseo connected to the emitter, reference numeral 4 is a reel for the detection, 7 is a rectifier circuit for power supply 8 is a power supply transformer, and 9 is a power supply voltage adjustment selecting switch, LED ₁ is powered Indicator lamp, LED ₂ is pump operation indicator, (C) relay (RL ₁ ) and selector switch (SR) (SL This is a movable contact, 11 wells.

Referring to the operation and effects of the present invention made in detail as follows.

The selector switch (SR) first switches the movable contact (C) to the position of the contact (SR ₂ ), connects the pressure switch (1) to the sensing rod terminal (E ₁ ) (E ₃ ), and then opens the faucet to open the pressure switch. When (1) is turned ON and the voltage input to the power supply transformer 8 is controlled by the selector switch 9, a closed circuit is formed in the sensing winding 4 so that the voltage is rectified. Supplied to the circuit (5), the output (+) current of the rectifier circuit (5) charges the capacitor (C ₁ ), and the time delay resistor through the contact (C) (SR ₂ ) of the selector switch (SR). (R ₂₎ a variable resistor (VR) the zener diode (ZD) transistor (TR ₁₎ is applied to the base transistor is conductive, so from the collector (TR ₁₎ through-the base of the signal is a PNP transistor (TR ₂₎ () It is applied and the transistor TR ₂ is also conducted at the same time.

Yiettara relay movable contact (C) of (RL ₁₎ the contact is switched to another (RL ₁ -D ') is applied to the power Motor (M), the pump (P) is started, and the pumping operation display lamp ( LED ₂ ) is green.

At this time, if the water is used more than the water supply by opening all the faucets, the pressure in the discharge pipe is lower than the set pressure, and the pressure switch is kept on, so the pump (P) continues to pump water. Will be used.

However, when only a part of the shower or faucet is opened and used, the amount of water supplied by the pump (P) may be larger than the amount used, and in this case, the set pressure is exceeded so that the pressure switch (1) OFF (閉), the sensing winding (4) turns into an open circuit, and the output current is cut off in the rectifier circuit (5), but the capacitor (C ₁ ) starts discharging so that the potential of the capacitor (C ₁ ) becomes a zener diode ( Since the base current of the transistor TR ₁ is supplied until the zener voltage of ZD falls below the relay voltage, the relay driving transistor TR ₂ will continue to be turned on to start pumping by operating the motor M. After the set time by the resistor R ₂ and the variable resistor VR has elapsed, the capacitor C lowers the discharge voltage to below the zener voltage of the zener diode ZD. Since the base current does not flow in (TR ₁ ) A transistor (TR ₁₎ (TR ₂₎ is at the same time turn-off (Turn off) and, the movable relay contacts (C) of (RL ₁₎ is switched to a contact point (RL ₁ -b) Motor (M) pump ( Operation of P) is stopped.

After a certain time, when the pressure drops below the set pressure, the pressure switch 1 is re-contacted (ON) to continue the repeated operation for the time set by the operation as described above. When the faucet is completely locked, the pressure switch 1 is closed. Since the open state is maintained, after the time set by the capacitor C and the delay time resistor R is operated, the relay driving transistor TR ₂ is turned off, thus the relay RL1 is turned off. ) The current is cut off and the motor (M) pump (P) is stopped.

In this way, the present invention is that the motor (M) is properly controlled as if there is a pressure tank, so that even when the ups and downs of water consumption are severe, it is not frequently operated and stopped, and without connecting the pressure switch (1). Connect the sensing rod (E _{1 '} ) (E _2' ) (E _{3 '} ) to the sensing rod connector (E ₁ ) (E ₂ ) (E ₃ ), and then move the contact point (C) of the selector switch (SR). Is switched to the position of contact SR ₁ , the normal supply / drainage liquid level controller functions the movable contact of the selector switch (C) without the hassle of moving and connecting the terminal according to the drainage or water supply. Is switched to the contact point (SL ₃ ) position, drained, conversely, if you switch to the contact point (SL ₄ ) position can be used for water supply.

And as shown by the dotted line, when using a large power power relay (RL ₂ ) according to the motor (M) load capacity, when the movable contact (C) of the selector switch (SR) to the position of the contact (SR ₂ ) In one operation, the relay RL1 is operated in accordance with the opening and closing of the pressure switch 1, and by the contact C (RL ₁ -C ') (RL ₁ -D'). and a power relay (RL ₂₎ operation, the operation stop operation of the power relay (RL ₂₎ contact the motor (M) by a pump (RL ₂ -a) (P) is of the automatic water supply. Also, without connecting the pressure switch (1), connect the sensing rod (E ₁ ) (E ₂ ) (E ₃ ) to the sensing rod (E _{1 '} ) (E _2' ) (E _{3 '} ) and then select When the movable contact C of the switch SR is switched to the contact SR ₁ position, it is a liquid level controller function. When the movable contact C 'of the selector switch SL' is switched to the contact SL _{3 '} position, drainage, On the contrary, if you switch to the contact point (SL _{4 '} ), you can use the supply and drainage without changing the wiring of the terminal.

As such, the present invention enables automatic water supply above the pressure switch set pressure and prevents frequent operation of the pump motor without a separate air supply or a large pressure tank, even when the water usage is severe. Not only can it save, but it can extend the life by eliminating the root cause of the motor failure, and it can extend the life by eliminating the root cause, and it can be used to select water supply and drainage without changing the connection terminal by using the liquid level controller. It is a practical design with convenient and cost reduction.

Claims (2)

The output of the transistor TR ₂ operating on the sensing rods E _{1 ′} (E _{2 ′} ) (E _{3 ′} ) and the relay RL ₁ and its contacts RL ₁ -C (RL ₁ -D) (C In the well-known thing which makes the motor (M) of the volute pump (p) connected to) connects the pressure switch (1) to the sensing rod connection terminals (E ₁ ) and (E ₃ ), and the pressure switch (1) According to the operation of opening and closing of the pulsation voltage of the rectifier circuit (5) through which the output current flows is converted into a direct current from the smoothing circuit (6) to be applied to the base of the transistor (TR ₁ ), 6) parallel connection between a resistor R ₁ and a delay time resistor R ₂ (VR) via a capacitor C ₁ and a contact switch SR ₁ (SR ₂ ) of a selector switch SR, The transistor TR ₁ is connected to the parallel-connected resistor R ₁ and the delay time resistor R ₂ , the bias resistor R ₃ is connected to the collector, and the relay RL ₁ is interposed therebetween. Volute by connecting the base of the PNP transistor TR ₂ to drive the Automatic water supply system using a pump. The liquid level controller of claim 1, wherein the relay (RL ₁ ) contacts C (RL ₁ -C) (RL ₁ -D) of the supply and drain selection switch SL (SL ₃ ) (SL ₄ ). 'contacts (SL (C) the serial connection, and when to carry the high power power relay (RL ₂₎ is a power relay (RL _2), and a class, choose a multiple switch _{(SL)' 3) (SL} ' ₄ ) Connect the contacts RL1-C '(RL1-D') (C _' ) of the relay (SL _1' ) in series, and then connect the relays (TR ₂ ) to the relay RL ₁ and the power supply in parallel. Automatic water supply system connected to the emitter of